Danfoss VLT HVAC Basic Drive FC 101 Programming Manual page 79

Parameters
3.10.5 14-4* Energy Optimization
Parameters for adjusting the energy optimization level in
both variable torque (VT) and automatic energy optimi-
zation (AEO) mode.
Automatic energy optimization is only active if
parameter 1-03 Torque Characteristics is set to [3] Auto
Energy Optim.
14-40 VT Level
Range: Function:
NOTICE
90 % [40 -
*
90 %]
This parameter cannot be adjusted
while the motor is running.
Enter the level of motor magnetization at low
speed. Low values reduce energy loss in the
motor, but also reduce load capability.
14-41 AEO Minimum Magnetisation
Range: Function:
66 % [40 - 75 %] Enter the minimum allowable magnetization
*
for AEO. Low values reduce energy loss in
the motor, but also reduce resistance to
sudden load changes.
14-44 d-axis current optimization for IPM
Range:
100 % [0 - 200 %]
*
3.10.6 14-5* Environment
These parameters help the frequency converter to operate
under special environmental conditions.
14-50 RFI Filter
This parameter is only valid for frequency converters of the
following enclosure sizes:
•
IP20, 3x200–240 V, enclosure sizes H6–H8
•
IP20, 3x380–480 V, enclosure sizes H6–H8
•
IP54, 3x380–480 V, enclosure sizes I6–I8
•
IP20, 3x525–600 V, enclosure sizes H6–H10
Option: Function:
[0] Off Select [0] Off only if the frequency converter is fed by
an isolated mains source (IT mains).
In this mode, the internal RFI filter capacitors between
chassis and the mains RFI filter circuit are cut out to
reduce the ground capacity currents.
[1] On Select [1] On to ensure that the frequency converter
*
complies with EMC standards.
MG18B502
Programming Guide
14-51 DC-Link Voltage Compensation
Option: Function:
[0]
[1]
*
14-52 Fan Control
This parameter is used to select the fan control operating mode.
The acoustic noise of the frequency converter is different from
running heavy load (high heat sink temperature) to running light
load or stand-by mode.
Option:
[0] Auto
[4] Auto Low Temp
Env.
[5] Constant-on
mode
Function:
[6] Constant-off
mode
[7] On-when-
Inverter-is-on-
else-off Mode
14-53 Fan Monitor
Select which reaction the frequency converter should take in
case a fan fault is detected. This parameter is only valid for
frequency converters of the following enclosure sizes:
•
•
•
•
Option:
[0]
[1]
*
[2]
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Off The overmodulation for output voltage is off to avoid
torque ripple on the motor shaft.
On Enables the overmodulation for output voltage to
obtain an output voltage up to 15% greater than the
mains voltage.
Function:
The fan runs with full speed for a short
time and then automatically adjusts the
speed according to the load and ambient
temperature. The fan also runs at minimum
speed even if the reference is 0 Hz due to
the heat generated from the IGBT. The fan
stops if sleep mode function is activated.
This is the default setting for all frequency
converters except H1 enclosure sizes.
Only valid for H6-H10 & I6-I8 enclosure
sizes.
For on-site fan test or if the fan must run
100% speed constantly. Only valid for H1-
H5 & I2-I4 enclosure sizes.
If convection cooling is sufficient or the
frequency converter is mounted in a
demonstration panel, exhibitions and so on.
The frequency converter trips on heat sink
overtemperature if loaded more than the
convection cooling allows. Only valid for
H1-H5 & I2-I4 enclosure sizes.
The fan runs at maximum speed if in hand-
on mode or reference is above 0 Hz. The
fan is stopped if sleep mode is active. This
is the default setting for H1 enclosure size
only but can also be selected for H2-H5 &
I2-I4 enclosure sizes.
IP20, 3x200–240 V, enclosure sizes H6–H8.
IP20, 3x380–480 V, enclosure sizes H6–H8.
IP54, 3x380–480 V, enclosure sizes I6–I8.
IP20, 3x525–600 V, enclosure sizes H6–H10.
Disabled
Warning
Trip
3
Function:
77
3